568 search results - page 50 / 114 » Reusing relational sources for semantic information access |
IJCAI
2003
15 years 1 months ago
2003
Opening up large amounts of loosely structured information for easy access and use is a complex problem. This paper describes two systems that address different aspects of the pro...
121
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WWW
2006
ACM
16 years 15 days ago
2006
ACM
An important issue arising from Peer-to-Peer applications is how to accurately and efficiently retrieve a set of K best matching data objects from different sources while minimizi...
TARK
1998
Springer
15 years 4 months ago
1998
Springer
We study the dynamics of information change, using modal logic as a vehicle. Our semantic perspective is that of a supermodel in which a state represents some agent's informa...
CCS
2008
ACM
15 years 1 months ago
2008
ACM
Pervasive computing environments have created a requirement for spatial- and temporal-aware access control systems. Although temporal, spatial and spatio-temporal role-based acces...
128
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DGO
2003
15 years 1 months ago
2003
Semantic heterogeneity of information is a major barrier of information and system interoperability. Defining ontology of data and mapping ontologies among heterogeneous informati...